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High thermal stability up to 250 °C continuous use temperature.
Excellent weather resistance and UV stability for long-term outdoor performance.
Good compatibility with organic resins including acrylics, alkyds, and polyesters.
Low surface energy enabling superior water repellency and anti-graffiti properties.
Solvent-based formulation designed for easy integration into conventional coating systems.
High-performance architectural coatings for façades and concrete protection.
Heat-resistant coatings for industrial equipment and exhaust components.
Weatherable topcoats for metal roofing and cladding systems.
Water-repellent impregnation treatments for natural stone and masonry.
Functional additives in fire-retardant and intumescent coating formulations.
| Chemical Type | Methyl-phenyl silicone resin |
| Product Form | Liquid, solvent-based solution |
| Appearance | Clear, colorless to pale yellow liquid |
| Solvent | Xylene / aromatic hydrocarbon mixture |
| Solids Content | Approx. 60 wt % |
| Viscosity (25 °C) | Approx. 25–35 mPa·s (Brookfield LV, spindle #1) |
| Density (20 °C) | Approx. 0.94–0.96 g/cm³ |
| Flash Point (PMCC) | Approx. 35–40 °C |
Q1: What is the primary function of SILRES BS 1306 in coating and ink formulations?
A: SILRES BS 1306 functions as a hydrophobic, heat-resistant silicone resin modifier that enhances surface slip, improves scratch resistance, and imparts water repellency without significantly compromising substrate adhesion or film flexibility.
Q2: Is SILRES BS 1306 compatible with common organic polymer systems such as acrylics, polyurethanes, and alkyds?
A: Yes, SILRES BS 1306 is designed for compatibility with a broad range of solvent-based and high-solids organic binder systems. It can be incorporated via simple mechanical mixing or low-shear dispersion, though optimal compatibility should be verified in the final formulation under intended processing conditions.
Q3: How does SILRES BS 1306 behave during thermal curing, and what is its typical contribution to film hardness?
A: SILRES BS 1306 undergoes partial condensation upon heating, contributing to increased crosslink density in the cured film. This results in improved hardness and thermal stability, particularly in applications requiring short-bake cycles or elevated service temperatures.
Q4: Can SILRES BS 1306 be used in UV-curable systems?
A: While not inherently UV-reactive, SILRES BS 1306 may be incorporated into UV-curable formulations where thermal post-curing is applied or where its functionality is needed alongside photopolymerizable components. Compatibility and potential inhibition effects should be evaluated experimentally in each specific system.
Q5: What are recommended handling and storage conditions for SILRES BS 1306?
A: Store in tightly sealed original containers at temperatures between 5 °C and 30 °C, away from direct sunlight and moisture. Avoid prolonged exposure to freezing conditions or excessive heat, and ensure good ventilation during handling due to its solvent content.
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